3778025

Information

• Patent Grant
• 3778025

• References
• Source

• Patent Number

  3,778,025

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • H03F3/387 - with semiconductor devices only
  • G05B11/16 - Two-step controllers

• US Classifications

  • 251 - Valves and valve actuation
  • 236 - Automatic temperature and humidity regulation
  • 318 - Electricity: motive power systems